Dresden 2020 – wissenschaftliches Programm

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DY: Fachverband Dynamik und Statistische Physik

DY 57: Poster: Statistical Physics; Critical Phenomena; Stochastic Thermodynamics; Extreme Events; Data Analytics

DY 57.1: Poster

Donnerstag, 19. März 2020, 15:00–18:00, P1C

Collecting and Analysing Formulas for Non-Linear Response — •Tristan Holsten and Matthias Krüger — Georg-August-Universität, Göttingen, Germany

We study, based on a path integral approach, the non-linear responses of interacting systems perturbed by an external stimulus. To reach a better understanding of such systems, we split the perturbative part of the system's action into its time-symmetric and time-antisymmetric, entropic component. Starting from equilibrium or more general from a steady state, relations and knowledge about the interchangeability of these two components are gathered, by evaluating correlation functions. To obtain these correlation functions, we employ series expansions in the strength of perturbation as well as a time transient approach.